When do you think we'll live in a post-national world? How will it be like?

I see things like Seasteading, SpaceX, Cryptocurrencies, AI, automation, and Self-Driving RVs eventually allowing humans to have much more freedom as to what they do with their lives, which may allow humans to live in a post-nationalistic world much sooner than people realize.

When do you think this will happen and when?